Sawing-machine



(No Model.) 1 2 Sheets-8heet 1.

O. M. HILLEBRAND.

- SAWING MACHINE.

atented Apr. 14

0. M. HILLEBRAND.

(No Model.) 2 Sheets-Sheet 2.

SAWING MACHINE.

Patented AN DREW BJSRAHAM. PHUTOUYNQWASHINGYUN. D11

UNITED STATES PATENT OFFICE.

CHRISTIAN M. I-IILLEBRAND, OF LEMARS, IOlVA.

SAWlNG-MACHINE.

SPECIFICATION forming 'part of Letters Patent No. 558,073, dated April14, 1896. Application filed January 26, 1895. Serial No. 536,352. (Nomodel.)

To all whom it may concern.-

Be it known that I, CHRISTIAN M. HILLE- BRAND, a citizen of the UnitedStates, residing at Lemars, in the county of Plymouth and State of Iowa,have invented a new and useful Sawing-Machine, of which the following isa specification.

The invention relates to sawing-machines, and particularly to a deviceadapted for use in clearing land, the objects in view being to providean apparatus capable of being operated by steam-power, as by anytraction-engine of ordinary construction to provide improved means forchanging the plane of operation of the saw-blade to adapt it for cuttingstanding or horizontal timber; to provide simple and efficient means forfeeding and guiding the saw-blade in either of its positions; to providemeans for cutting timber below the surface of the soil, as in clearingland in which it is desirable to utilize all of the surface, and toprovide simple and improved means whereby the apparatus may be arrangedin convenient position for transportation by the traction-engine fromwhich it derives power.

Further objects and advantages of the invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the claims.

In the drawings, Figure 1 is a side view of a sawing-machine embodyingthe invention applied in the operative position to and con nected with atraction-engine. Fig. 2 is a plan View of the machine. Fig. 3 is a sideView of the same, showing the saw arranged to cut in a vertical plane.Fig. 4 is a detail vertical section of the head-block and the contiguousend of the sawblade. Fig. 5 is a transverse vertical section on the line5 5 of Fig. 1. Fig. 6 is a detail View of a saw-guide adapted to besupported by a log. Fig. 7 is adetail plan view of a portion of theinner or rear end of the saw and the contiguous parts to show the mannerof securing the same in place when the saw is arranged to cut in avertical plane. Fig. 8 is a detail plan view of an auxiliary guiding andtension device for use in connection with the saw when cutting timber ofgreat diameter. Fig. 9 is a detail view of the carriage.

Similar numerals of reference indicate corresponding parts in all thefigures of the drawings.

1 designates any traction-engine of the ordinary construction, having adriving-pulley 2 for a belt 3, and supported by a bracket 4 at the frontends of said engine is a transverse driving-shaft 5, provided at one endwith a crank 6 and at the other end with a pulley 7, around which saidbelt 3 extends. A central inclined brace 8 extends from the upperportion of the bracket 4 to the center of the shaft 5, and side braces 9serve as additional means of supporting the shaft. Fulcrumed upon thisdriving-shaft by means of stirrup-bearings 10 is a swinging frame 11,having a transverse bar 12, parallel longitudinal slotted guides 13, anda diagonally-disposed braee let, which connects the inner end of thetransverse bar 12 with the front end of the inner guide 13. The frontends of said guides are connected by an arch 15 and the rear endsthereof by a similar arch 16. Mounted in these guides is a carriage 17,connected by means of a pitman 18 to the crank-arm 6, whereby therotation of the shaft 5 causes a longitudinal reciprocation of thecarriage. In the construction illustrated in the drawings said carriageconsists of a block arranged in a horizontal plane and provided with avertical opening 19 and a similar transverse or horizontal opening 20,either of which is,

adapted for the reception of a bar 21, which in Figs. 1, 2, and 5 isshown in the vertical opening and in Fig. 3 is shown in the horizontalopening. Set-screws 22 and 23 are employed to secure said bar in theopenings, respectively.

In Fig. 1 a brace 24 is shown in connection with the bar 21 to preventvibration of the lower end of said bar when the machine is adjusted tocut timber below the surface of the soil, said brace comprisingduplicate rods (indicated in dotted lines 'in Fig. 5) attached at theirlower ends to a collar 25 and at their upper ends to the under surfaceof the carriage. screw 26, and the upper ends of .therods are secured tothe carriage by means of bolts 27.

Mounted for swinging movement upon the bar 21 is a head-block 28,provided with an opening 29 for the reception of said bar and with atransverse guide 30, in which is ar Said collar 25 is provided with asetranged a slide 31, carrying a saw 32. This slide 31 comprises upperand lower parallel plates, between which the rear end of the sawblade isarranged, said plates and the blade being connected by means of rivets33. The outer edges of the slide are engaged by the lips 34, which formthe outer side of the guide. In connection with said slide is employedan adjusting-screw 35, threaded in an opening 36 parallel with the guide30 and mounted loosely in a bearing formed in an car 37 at one end ofthe slide. This adjusting-screw terminates at one end in a hand-wheel38, whereby it may be adjusted to vary the position of the saw in theplane in which it is cutting.

In order to cause the saw to feed continuously and at the same time bearwith a resilient pressure against the timber, a heel-spring 39 issecured to the head-block and bears at its free end against a pin 40 onthe saw-blade, said spring 39 being extended around a sleeve 41, whichforms a part of a disk or table 42 and engages a pin 43, depending fromsaid disk or table. This disk or table is adapted to support thehead-block at the desired adjustment upon the bar 21, and it is securedto the bar by means of a set-screw 44, as shown clearly in Fig. 4.

In the construction shown in Figs. 1 and 2, in which the saw-blade isarranged to cut in a horizontal plane, a second feeding-spring 45 isemployed, said spring being arranged at its rear end in contact with theinner side of a guide-pin 46 and the outer side of a holdingpin 47, andbeing provided at its front end with an antifriction-roller 48, whichbears against the back of the saw. Said pins 46 and 47 are carried bythe frame 11 and are therefore held stationary during the sawingoperation, the pin 46 being fitted in eyes 49 and 50 and being securedat the desired vertical adjustment by means of set-screws 51 and the pin47 being provided at its upper end with an ear 52, which is bolted to aslotted standard 53, the slot 54 in said standard providing for theadjustment of the bolt 55 to vary the vertical position of the pin.

In order to support the outer end of the frame 11, a tension-brace 56 ishinged, as at 57, to the front end of the traction-engine and is engagedat its front end by a thumb-screw 58, and when it is desired to arrangethe apparatus for transportation said thumb-screw is disengaged from thefront end of the frame and the latter is elevated upon the shaft 5 as afulcrum. The arrangement of the headblock upon the bar 21 as a centerallows the saw to swing in a plane parallel with the frame, and thus toassume a pendent position when the frame is elevated for transportation.

From the above description it will be understood that the connectionbetween the head-block and the parts carried thereby and the carriage isaccomplished by means of the bar 21, which, when engaged in the verticalopening 19 of the carriage, provides for the adjustment of the saw tooperate in the desired plane above or below the surface of the soil, andwhen it is desired to operate the sawblade in a vertical plane the bar21 is withdrawn from the vertical opening 19 and is inserted in thehorizontal opening 20, as shown in Fig. 3. The heel-spring 39 isemployed in this adjustment of the parts; but the auxiliary spring 45,which is employed when the saw is operating in a horizontal plane, isuseless when cutting in a vertical plane in view of the fact that theweight of the saw-blade causes it to feed through the timber. In orderto guide and prevent lateral vibration of the free end of the saw, theguide 59 (shown in Fig. 6) is employed. This guide is loopshaped, withsharpened extremities 60, which may be driven into the log upon oppositesides of the plane of the saw-blade, as indicated in Fig. 3, and theinner sides of the arms of the guide are provided with fastening-strips61, preferably of wood or similar material, to prevent unnecessaryfriction and chattering of the saw.

In Fig. 8 is shown adevice adapted for use in connection with the saw incutting heavy timber while standing, said device consisting of adiagonally-disposed guide-bar 62, secured at its extremities by means ofstakes 63 or similar devices, a traveler 64, consisting of a loop65,provided with an antifriction-roller 66, and a spiral spring (37 orits equivalent, carried by said traveler and connected by means of acord or chain 68 with the free end of the saw-blade, a portion of whichis shown at 32. The tension-spring 67 prevents the saw-blade frombuckling by exerting a constant strain in the direction of movementthereof, and the inclined guide 62 has the effect of drawing the sawtoward or crowding it against the timber, which is indicated at 69 insaid Fig. 8. It is obvious that this attachment maybe employed inconnection with the apparatus in sawing ordinary timber which is cutabove the plane of the surface of the ground; but it is unnecessary withtimber of ordinary size in that the springs 39 and 45 have sufficientstrength to insure the proper feeding of the blade; but in cuttingtimber of great diameter it is found desirable to employ this auX-iliary device, which insures rapidity of oper ation.

In order to facilitate the elevation of the free end of thesupporting'frame, a Windlass 7 O is mounted upon the front end of themotor, and is connected to the frame by means of a chain or cable 71.

Changes in the form, proportion, and minor details of construction maybe resorted to without departing from the spirit or sacrificing any ofthe advantages of this invention.

1 Having described the invention, what is claimed is- 1. The combinationwith a portable engine, of a bracket secured to the engine and extendingin advance of the front end thereof, braces for supporting the front endof said IIC bracket, a driving-shaft mounted in bearings near the frontend of the bracket, means for communicating motion to the driving-shaft,a frame fulcrumed upon said shaft, a windlass connected to the pivotalframe near its outer or free end, a tension-brace 56 havingrearwardly-divergent arms hinged at their rear extremities to theengine, a thumb-screw for securing the front end of said brace to thefree end of the pivotal frame, and sawing mechanism mounted upon theframe and operatively connected with the driving-shaft, substantially asspecified.

2. The combination with a driving-shaft and means for operating thesame, of a frame, a carriage mounted for reciprocation in the frame, abar, means for securing the bar to the carriage in a vertical or ahorizontal position, and adjusting the same longitudinally thereof ahead-block swiveled upon said bar, means for holding the head-block atthe desired point of the bar, and a saw carried by the head-block,substantially as specified.

3. The combination with a driving-shaft and means for operating thesame, of a frame, a carriage mounted for reciprocation on the frame andoperatively connected with the driving-shaft,a cross-sectionally-roundedbar depending from the carriage and mounted for adjustment thereonwhereby its lower extremity may be arranged below the level of thesurface of the soil, a saw having a headblock swiveled upon the bar, andmeans for imparting a continuous feeding impulse to the saw in the planeof its width, substantially as specified.

4:. The combination with a driving-shaft and means for operating thesame, of a frame, a carriage mounted for reciprocation on the frame andoperatively connected with the driving-shaft, a bar secured to thecarriage, a disk or table adj ustably secured to the bar, a head-blockswiveled upon the bar and restin g upon said disk or table, a sawcarried by the head-block, and means for giving the saw an impulse inthe plane of its width, substantially as specified.

5. The combination with a driving-shaft and means for operating thesame, of afralne, a carriage mounted for reciprocation in the frame andoperatively connected with the driving-shaft a bar secured to thecarriage perpendicular to the plane of movement thereof, a head swiveledon the bar and provided with a transverse guide 30, a slide 31 mountedin said guide, a saw secured to the slide, and an adjusting-screw 35connected to the slide and threaded in an opening in the head, wherebythe slide and the saw carried thereby may be adjusted in the plane ofthe.

width of the saw, substantially as specified.

6. The combination with a driving-shaft and means for operating thesame, of a frame,

to bear against the back of the saw-blade,

substantially as specified.

7. The combination with a driving-shaft and means for operating thesame, of a frame, a carriage mounted for reciprocation in the frame "andoperatively connected with the driving-shaft, a bar secured and arrangedperpendicular to the carriage, a head-block swiveled upon said bar andcarrying a saw-blade, a disk or table having a collar adjustably mountedupon the bar and adapted to support the head-block at the desiredadjustment, a heel-spring secured to said collar and connected at itsfree end to the saw-blade, and a vertically-adjustable auxiliary springsupported by the frame and arranged in frictional contact with the backof the saw-blade, substantially as specified.

8. The combination with a driving-shaft and means for operating thesame, of aframe, a carriage mounted for reciprocation in the frame andoperatively connected with the driving-shaft, a bar supported by andarranged perpendicular to the plane of the carriage, a head-blockswiveled upon said bar, means for adjusting the head-block upon the bar,a heel-spring connected at its free end t0 the saw-blade, rods arrangedparallel with said bar in advance'thereof,means for adjusting said rodsvertically, and an auxiliary spring secured at one end to the rods andprovided at its free end with an antifriction-roller to bear against theback of the saw-blade, substantially as specified.

9. The combination with a driving-shaft and means for operating thesame, of a frame, a carriage mounted for reciprocation in the frame andoperatively connected with the driving-shaft, a swiveled head blocksupported by the carriage, a saw-blade carried by the head-block, adiagonally -disposed guide-bar arranged in the plane of the sawblade, atraveler mounted upon the guide-bar, and a yielding tensile connectionbetween the traveler and the extremity of the saw-blade, substantiallyas specified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

